Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/226475 |
Resumo: | The effects of four light intensities (0; 2.8 ± 0.9; 5,5 ± 1,8 e 7,8 ± 2,5 1mol s-1 m-2, about 136.5 ± 87.5; 273 ± 43.8 e 390 ± 125 lux, respectively) on survival, productivity, weight gain and larval development of Macrobrachium amazonicum were investigated. Four treatments with three replicate tanks were evaluated. Newly hatched larvae were held in black tanks (80.2 ± 0.6 larvae L-1) filled with 50-L-brackish water (salinity of 10), in a recirculating system. Tanks were covered with shadow cloth allowing 35% and 70% light, respectively, to reach light intensities of 2.8 ± 0.9 and 5.5 ± 1.8 1mol s-1 m-2 at the water surface. Complete absence of light (0 1mol s-1 m-2) was obtained covering the tanks with opaque black plastic, and full-light condition used no covering (7.8 ± 2.5 1mol s-1 m-2). Observations showed that the survival rate was not affected by light intensity. Productivity and weight gain were higher under 7.8 ± 2.5 1mol s-1 m-2 light intensity than under 0 and 2.8 ± 0.9 1mol s-1 m-2 intensities (P<0.05). The larval development index was similar among the treatments under the different light intensities. However, from stage VII this index was increased slightly in the treatment under 7.8 ± 2.5 1mol s-1 m-2 light intensity. In conclusion, light intensity affects larval development of M. amazonicum. Values as high as 7.8 1mol s-1 m-2 (about 390 lux) improve the larval performance by enhancing development, productivity and weight gain compared to lower values. |
id |
UNSP_164af4e741d31520d34bad6b38aabb2d |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/226475 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicumThe effects of light intensities on larval development of amazon river prawn, macrobrachium amazonicumAmount of lightFreshwater prawnLaboratoryLarvicultureThe effects of four light intensities (0; 2.8 ± 0.9; 5,5 ± 1,8 e 7,8 ± 2,5 1mol s-1 m-2, about 136.5 ± 87.5; 273 ± 43.8 e 390 ± 125 lux, respectively) on survival, productivity, weight gain and larval development of Macrobrachium amazonicum were investigated. Four treatments with three replicate tanks were evaluated. Newly hatched larvae were held in black tanks (80.2 ± 0.6 larvae L-1) filled with 50-L-brackish water (salinity of 10), in a recirculating system. Tanks were covered with shadow cloth allowing 35% and 70% light, respectively, to reach light intensities of 2.8 ± 0.9 and 5.5 ± 1.8 1mol s-1 m-2 at the water surface. Complete absence of light (0 1mol s-1 m-2) was obtained covering the tanks with opaque black plastic, and full-light condition used no covering (7.8 ± 2.5 1mol s-1 m-2). Observations showed that the survival rate was not affected by light intensity. Productivity and weight gain were higher under 7.8 ± 2.5 1mol s-1 m-2 light intensity than under 0 and 2.8 ± 0.9 1mol s-1 m-2 intensities (P<0.05). The larval development index was similar among the treatments under the different light intensities. However, from stage VII this index was increased slightly in the treatment under 7.8 ± 2.5 1mol s-1 m-2 light intensity. In conclusion, light intensity affects larval development of M. amazonicum. Values as high as 7.8 1mol s-1 m-2 (about 390 lux) improve the larval performance by enhancing development, productivity and weight gain compared to lower values.Universidade Federal do Recôncavo da Bahia Centro de Ciências Agrárias, Ambientais e Biológicas Campus Universitário, Rua Rui Barbosa, n 710 - Bairro Centro - CEP: 44.380-000, Cruz das Almas-BAUniversidade Estadual Paulista Centro de Aquicultura Campus Experimental do Litoral Paulista, Praça Infante Dom Henrique, s/n - CEP: 11.330-900, São Vicente-SPUniversidade Estadual Paulista Centro de Aquicultura Campus Experimental do Litoral Paulista, Praça Infante Dom Henrique, s/n - CEP: 11.330-900, São Vicente-SPCentro de Ciências Agrárias, Ambientais e BiológicasUniversidade Estadual Paulista (UNESP)de Araujo, Mariana CutoloValenti, Wagner Cotroni [UNESP]2022-04-29T00:13:27Z2022-04-29T00:13:27Z2011-08-22info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article155-164Boletim do Instituto de Pesca, v. 37, n. 2, p. 155-164, 2011.1678-23050046-9939http://hdl.handle.net/11449/2264752-s2.0-80051744702Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengporBoletim do Instituto de Pescainfo:eu-repo/semantics/openAccess2022-04-29T00:13:27Zoai:repositorio.unesp.br:11449/226475Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:40:21.629254Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum The effects of light intensities on larval development of amazon river prawn, macrobrachium amazonicum |
title |
Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum |
spellingShingle |
Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum de Araujo, Mariana Cutolo Amount of light Freshwater prawn Laboratory Larviculture |
title_short |
Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum |
title_full |
Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum |
title_fullStr |
Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum |
title_full_unstemmed |
Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum |
title_sort |
Efeito da intensidade luminosa no desenvolvimento larval do camarão-da-amazônia, macrobrachium amazonicum |
author |
de Araujo, Mariana Cutolo |
author_facet |
de Araujo, Mariana Cutolo Valenti, Wagner Cotroni [UNESP] |
author_role |
author |
author2 |
Valenti, Wagner Cotroni [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Centro de Ciências Agrárias, Ambientais e Biológicas Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
de Araujo, Mariana Cutolo Valenti, Wagner Cotroni [UNESP] |
dc.subject.por.fl_str_mv |
Amount of light Freshwater prawn Laboratory Larviculture |
topic |
Amount of light Freshwater prawn Laboratory Larviculture |
description |
The effects of four light intensities (0; 2.8 ± 0.9; 5,5 ± 1,8 e 7,8 ± 2,5 1mol s-1 m-2, about 136.5 ± 87.5; 273 ± 43.8 e 390 ± 125 lux, respectively) on survival, productivity, weight gain and larval development of Macrobrachium amazonicum were investigated. Four treatments with three replicate tanks were evaluated. Newly hatched larvae were held in black tanks (80.2 ± 0.6 larvae L-1) filled with 50-L-brackish water (salinity of 10), in a recirculating system. Tanks were covered with shadow cloth allowing 35% and 70% light, respectively, to reach light intensities of 2.8 ± 0.9 and 5.5 ± 1.8 1mol s-1 m-2 at the water surface. Complete absence of light (0 1mol s-1 m-2) was obtained covering the tanks with opaque black plastic, and full-light condition used no covering (7.8 ± 2.5 1mol s-1 m-2). Observations showed that the survival rate was not affected by light intensity. Productivity and weight gain were higher under 7.8 ± 2.5 1mol s-1 m-2 light intensity than under 0 and 2.8 ± 0.9 1mol s-1 m-2 intensities (P<0.05). The larval development index was similar among the treatments under the different light intensities. However, from stage VII this index was increased slightly in the treatment under 7.8 ± 2.5 1mol s-1 m-2 light intensity. In conclusion, light intensity affects larval development of M. amazonicum. Values as high as 7.8 1mol s-1 m-2 (about 390 lux) improve the larval performance by enhancing development, productivity and weight gain compared to lower values. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-08-22 2022-04-29T00:13:27Z 2022-04-29T00:13:27Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Boletim do Instituto de Pesca, v. 37, n. 2, p. 155-164, 2011. 1678-2305 0046-9939 http://hdl.handle.net/11449/226475 2-s2.0-80051744702 |
identifier_str_mv |
Boletim do Instituto de Pesca, v. 37, n. 2, p. 155-164, 2011. 1678-2305 0046-9939 2-s2.0-80051744702 |
url |
http://hdl.handle.net/11449/226475 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
Boletim do Instituto de Pesca |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
155-164 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128841636380672 |